/*
* $Id$
- *
- * Output an HTML message, modifying it slightly to make sure it plays nice
+ */
+/**
+ * \defgroup HTML2HTML Output an HTML message, modifying it slightly to make sure it plays nice
* with the rest of our web framework.
*
*/
-
-#include <ctype.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <sys/socket.h>
-#include <limits.h>
-#include <netinet/in.h>
-#include <netdb.h>
-#include <string.h>
-#include <pwd.h>
-#include <errno.h>
-#include <stdarg.h>
-#include <pthread.h>
-#include <signal.h>
+/*@{*/
#include "webcit.h"
#include "vcard.h"
#include "webserver.h"
-/*
+/**
+ * \brief Sanitize and enhance an HTML message for display.
+ * Also convert weird character sets to UTF-8 if necessary.
+ * \param charset the input charset
*/
-void output_html(void) {
+void output_html(char *charset, int treat_as_wiki) {
char buf[SIZ];
char *msg;
char *ptr;
int output_length = 0;
char new_window[SIZ];
int brak = 0;
+ int alevel = 0;
int i;
int linklen;
+#ifdef HAVE_ICONV
+ iconv_t ic = (iconv_t)(-1) ;
+ char *ibuf; /**< Buffer of characters to be converted */
+ char *obuf; /**< Buffer for converted characters */
+ size_t ibuflen; /**< Length of input buffer */
+ size_t obuflen; /**< Length of output buffer */
+ char *osav; /**< Saved pointer to output buffer */
+#endif
msg = strdup("");
- sprintf(new_window, "<A TARGET=\"%s\" HREF=", TARGET);
+ sprintf(new_window, "<a target=\"%s\" href=", TARGET);
- while (serv_gets(buf), strcmp(buf, "000")) {
+ while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
line_length = strlen(buf);
buffer_length = content_length + line_length + 2;
msg = realloc(msg, buffer_length);
if (msg == NULL) {
- wprintf("<B>realloc() error! "
- "couldn't get %d bytes: %s</B><BR><BR>\n",
+ wprintf("<b>");
+ wprintf(_("realloc() error! couldn't get %d bytes: %s"),
buffer_length + 1,
strerror(errno));
+ wprintf("</b><br /><br />\n");
return;
}
strcpy(&msg[content_length], buf);
content_length += 1;
}
+#ifdef HAVE_ICONV
+ if ( (strcasecmp(charset, "us-ascii"))
+ && (strcasecmp(charset, "UTF-8"))
+ && (strcasecmp(charset, ""))
+ ) {
+ ic = iconv_open("UTF-8", charset);
+ if (ic == (iconv_t)(-1) ) {
+ lprintf(5, "%s:%d iconv_open() failed: %s\n",
+ __FILE__, __LINE__, strerror(errno));
+ }
+ }
+ if (ic != (iconv_t)(-1) ) {
+ ibuf = msg;
+ ibuflen = content_length;
+ obuflen = content_length + (content_length / 2) ;
+ obuf = (char *) malloc(obuflen);
+ osav = obuf;
+ iconv(ic, &ibuf, &ibuflen, &obuf, &obuflen);
+ content_length = content_length + (content_length / 2) - obuflen;
+ osav[content_length] = 0;
+ free(msg);
+ msg = osav;
+ iconv_close(ic);
+ }
+#endif
+
ptr = msg;
msgstart = msg;
msgend = &msg[content_length];
while (ptr < msgend) {
- /* Advance to next tag */
+ /** Advance to next tag */
ptr = strchr(ptr, '<');
if ((ptr == NULL) || (ptr >= msgend)) break;
++ptr;
if ((ptr == NULL) || (ptr >= msgend)) break;
- /* Any of these tags cause everything up to and including
+ /**
+ * Any of these tags cause everything up to and including
* the tag to be removed.
*/
if ( (!strncasecmp(ptr, "HTML", 4))
msgstart = ptr;
}
- /* Any of these tags cause everything including and following
+ /**
+ * Any of these tags cause everything including and following
* the tag to be removed.
*/
if ( (!strncasecmp(ptr, "/HTML", 5))
strcpy(converted_msg, "");
ptr = msgstart;
while (ptr < msgend) {
- /* Make links open in a separate window */
- if (!strncasecmp(ptr, "<A HREF=", 8)) {
+ /**
+ * Change mailto: links to WebCit mail, by replacing the
+ * link with one that points back to our mail room. Due to
+ * the way we parse URL's, it'll even handle mailto: links
+ * that have "?subject=" in them.
+ */
+ if (!strncasecmp(ptr, "<a href=\"mailto:", 16)) {
content_length += 64;
converted_msg = realloc(converted_msg, content_length);
- sprintf(&converted_msg[output_length], new_window);
- output_length += strlen(new_window);
- ptr = &ptr[8];
- ++brak;
+ sprintf(&converted_msg[output_length],
+ "<a href=\"display_enter"
+ "?force_room=_MAIL_&recp=");
+ output_length += 47;
+ ptr = &ptr[16];
+ ++alevel;
}
- /* Turn loose URL's into hot links */
- else if ( (brak == 0)
+ /** Make external links open in a separate window */
+ else if (!strncasecmp(ptr, "<a href=", 8)) {
+ ++alevel;
+ if ( ((strchr(ptr, ':') < strchr(ptr, '/')))
+ && ((strchr(ptr, '/') < strchr(ptr, '>')))
+ ) {
+ /* open external links to new window */
+ content_length += 64;
+ converted_msg = realloc(converted_msg, content_length);
+ sprintf(&converted_msg[output_length], new_window);
+ output_length += strlen(new_window);
+ ptr = &ptr[8];
+ }
+ else if ( (treat_as_wiki) && (strncasecmp(ptr, "<a href=\"wiki?", 14)) ) {
+ lprintf(9, "converting wiki link\n");
+ content_length += 64;
+ converted_msg = realloc(converted_msg, content_length);
+ sprintf(&converted_msg[output_length], "<a href=\"wiki?page=");
+ output_length += 19;
+ ptr = &ptr[9];
+ }
+ else {
+ sprintf(&converted_msg[output_length], "<a href=");
+ output_length += 8;
+ ptr = &ptr[8];
+ }
+ }
+ /**
+ * Turn anything that looks like a URL into a real link, as long
+ * as it's not inside a tag already
+ */
+ else if ( (brak == 0) && (alevel == 0)
&& (!strncasecmp(ptr, "http://", 7))) {
linklen = 0;
- /* Find the end of the link */
+ /** Find the end of the link */
for (i=0; i<=strlen(ptr); ++i) {
if ((ptr[i]==0)
||(isspace(ptr[i]))
||(ptr[i]==10)
||(ptr[i]==13)
+ ||(ptr[i]=='(')
||(ptr[i]==')')
+ ||(ptr[i]=='<')
||(ptr[i]=='>')
+ ||(ptr[i]=='[')
||(ptr[i]==']')
) linklen = i;
if (linklen > 0) break;
}
}
else {
+ /**
+ * We need to know when we're inside a tag,
+ * so we don't turn things that look like URL's into
+ * links, when they're already links - or image sources.
+ */
if (*ptr == '<') ++brak;
if (*ptr == '>') --brak;
+ if (!strncasecmp(ptr, "</A>", 3)) --alevel;
converted_msg[output_length] = *ptr++;
converted_msg[++output_length] = 0;
}
}
- /* Output our big pile of markup */
- write(WC->http_sock, converted_msg, output_length);
+ /** Output our big pile of markup */
+ client_write(converted_msg, output_length);
- /* A little trailing vertical whitespace... */
- wprintf("<BR><BR>\n");
+ /** A little trailing vertical whitespace... */
+ wprintf("<br /><br />\n");
- /* Now give back the memory */
+ /** Now give back the memory */
free(converted_msg);
free(msg);
}
+/*@}*/
projects / citadel.git / blobdiff